CN103470233B - A kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method - Google Patents
A kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method Download PDFInfo
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Abstract
A kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method.Method comprises: in the well-digging of oil reservoir target area, drill stratum, oil reservoir, interlayer and natural gas reservoir from top to bottom, pit shaft is communicated with oil reservoir and gas-bearing formation, and carries out perforation to oil reservoir and gas-bearing formation; Selected eye length of tube, installs flow meter, pressure gauge and flow control valve; Under enter flow string and cable, flow string is connected in series the first oil pipe, oil well pump, eye pipe, packer and the second oil pipe successively, cable conducted signal; Set packer; Production tree and oil pumper are installed; Closing well, opens flow control valve, makes natural gas flow into oil reservoir; Close flow control valve, then stewing well; After reaching the design stewing well time, drive a well oil recovery.The present invention makes full use of the high-pressure energy of natural gas reservoir self, natural gas is made to flow directly into Heavy Oil Reservoir from gas-bearing formation through pit shaft, avoid technological process complexity, operating cost is high, energy consumption is large problem, natural gas throughput efficiency is higher simultaneously, and oil recovery efficiency significantly promotes.
Description
Technical field
The present invention relates to technical field of petroleum extraction, refer in particular to a kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method.
Background technology
At present, heavy crude reservoir often adopts that steam injection is handled up, SAGD, natural gas injection are handled up, the methods such as rare lifting mixed by combustion in situ, pump exploits.Wherein, the oil production method that natural gas injection is handled up is mainly by the natural gas extraction ground in gas-bearing formation, obtain natural air-air source, by oil well, natural gas is injected oil reservoir (gulping down gas process) with compressor again, natural gas is dissolved in crude oil, reduce Crude viscosity, then, then open oil well by crude oil and the natural gas one piece of extraction be dissolved in crude oil (process of feeling elated and exultant).
Tell beautiful gram heavy crude reservoir to be domestic first and to carry out natural gas and to handle up the oil field of test.Experimental stage adopts liquified natural gas (LNG) as source of the gas, and adopt following injection technology: the liquified natural gas in LNG storage tank is pressurized to suction port of compressor through low temperature liquid booster pump, suction port of compressor surge tank is entered after the vaporization of LNG vaporizer, after compressor boost, after entering distributing valve Sets of Measurement, be dispensed to injection well head.Concrete gas injection flow process is: LNG storage tank → low temperature liquid booster pump → vaporizer → suction port of compressor surge tank → vibrating spectral analysis → distributing valve group → (through single well pipeline) gas injection well (Yin Baishou, Li Jun, viscous crude natural gas is handled up test Above Ground Technology, oil-gas field surface engineering the 26th volume the 10th phase, 2007:24).At present, Tobias acid and Lu Ke oil field of oozing implements natural gas note of handling up and adopts integrated technique, this technology need meet following requirement: (1) optimizes completion and well cementation mode, for meeting the requirement of huff and puff gas sealing ability, prevent from, in gas injection process, has channeling occurs, guarantee gas injection safety, adopt long well cementing of cement section to add the omnidistance hermetic seal cased hole completion of straight well section for horizontal well straight well section, straight well oil reservoir; (2) develop natural gas to handle up hermetic seal well head and kit, under high pressure can realize hermetic seal; In injection process, pump be proposed pump seat and be suspended on well head, guarantee that natural gas injects from tubing safety; Well head, in certain altitude, can meet sucker rod pumping demand; Hermetic seal well head and kit mainly comprise polished rod connector, high pressure gas sealing wellhead, normal sleeve head, polished rod sealer etc.; (3) to handle up the requirement to tubing string hermetic seal in gas injection process for natural gas, consider gas injection process mesohigh gas tightness and production safety reliability, devise huff and puff gas-injection oil-production integrated pipe column; (4) not only can gas injection but also can produce for meeting, devise note adopt switch technique (concrete device please refer to following article: Gong little Xiong, Wang Aihua, Li Jun etc., deep-layer heavy crude natural gas note of handling up adopts integrated technique research and apply, petroleum gas journal, the 30th volume the 1st phase, 2008:303-305; Bai Yanhua letter man refined, viscous crude natural gas handle up note adopt integrated technique research, petroleum machinery, the 36th volume the 8th phase, 2008:74-77).
Above-mentioned technology adopts switching technique to completion and well cementation mode, well head and kit, flow string and note high requirement, and technique and operating process are very complicated, operating cost is expensive, energy consumption is large.
Summary of the invention
In view of the defect described in background technology, object of the present invention, be to provide a kind of heavy crude reservoir natural gas huff and puff oil recovery process system and oil production method, make full use of self high-pressure energy of natural gas reservoir, make natural gas flow directly into Heavy Oil Reservoir from gas-bearing formation through pit shaft, avoid technological process complexity, operating cost is high, energy consumption is large problem.
The object of the invention described above is realized by following technical scheme:
First it should be noted that, in actual production operating process, the device such as oil pumper, production tree, extension pump installation, oil well pump, sucker rod, tail pipe, screen casing required for conventional Heavy Oil exploitation all coordinates the present invention.Because the structure of these devices, effect, mounting method and using method are popularized, the present invention no longer repeats one by one to the structure of said apparatus, effect, mounting method and using method.
The invention provides a kind of heavy crude reservoir natural gas huff and puff oil recovery process system, enter to have flow string down in the wellbore, described flow string is serially connected with the first oil pipe, oil well pump, eye pipe, packer, the second oil pipe from top to bottom successively; Described pit shaft all has perforated interval in the position of corresponding oil reservoir and natural gas reservoir; The setting position of described packer between oil reservoir and natural gas reservoir, with the oil jacket annular space between oil-separating layer and natural gas reservoir.
Heavy crude reservoir natural gas huff and puff oil recovery process system as above, in the second oil pipe, the flow be provided with for monitoring gas discharge takes into account the pressure gauge for monitoring gas pressure; Second oil pipe end is provided with the flow control valve entering oil pipe flow for controlling natural gas.
Heavy crude reservoir natural gas huff and puff oil recovery process system as above, it is characterized in that, described flow meter is connected with the flow meter terminal being positioned at ground surface end by the first cable, flow meter terminal demonstration flow number; Described pressure gauge is connected with the pressure gauge terminal being positioned at ground surface end by the second cable, pressure gauge terminal demonstration pressure value; Described flow control valve is connected with the flow control valve terminal being positioned at ground surface end by the 3rd cable, by flow control valve terminal adjust flux control valve valve size, to control gas discharge; Described oil production technology system is also provided with production tree at well head, described production tree is provided with the first cable aperture, the second cable aperture and the 3rd cable aperture, so as the first cable, the second cable and the 3rd cable respectively correspondence pass; Rubber seal is passed through in gap between cable aperture and cable.
Heavy crude reservoir natural gas huff and puff oil recovery process system as above, it is characterized in that, described first cable stretches out from described flow meter terminal, through the first cable aperture on production tree, oil jacket annular space is extended into along well head, enter a pipe inside by the eyelet of eye pipe again and extend downward the second oil pipe, being connected with the flow meter being arranged in the second oil pipe; Described second cable stretches out from described pressure gauge terminal, through the second cable aperture on production tree, extends into oil jacket annular space along well head, then enters a pipe inside by the eyelet of eye pipe and extend downward the second oil pipe, is connected with the pressure gauge being arranged in the second oil pipe; Described 3rd cable stretches out from described flow control valve terminal, through the 3rd cable aperture on production tree, extend into oil jacket annular space along well head, then enter a pipe inside by the eyelet of eye pipe and extend downward the second oil pipe, the flow control valve be connected in series with the second oil pipe end is connected.
The present invention also provides a kind of heavy crude reservoir natural gas huff and puff oil recovery method, comprising:
Steps A: drill an oil well in oil reservoir target area, from top to down drills stratum, oil reservoir, interlayer and natural gas reservoir, by pit shaft, oil reservoir is communicated with gas-bearing formation, and carries out perforation to the wellbore section of corresponding oil reservoir and natural gas reservoir;
Step B: the eye pipe selecting suitable length according to the production capacity of eye tube material intensity, natural gas reservoir and compartment thickness; In second oil pipe, the flow arranged for monitoring gas discharge takes into account the pressure gauge for monitoring gas pressure, at the second oil pipe end, the flow control valve for controlling gas discharge is set, the cable of flow meter, pressure gauge and flow control valve is each passed through the eyelet on the second oil pipe and eye pipe, and makes the degree of depth of length in reserve slightly larger than pit shaft of each bar cable;
Step C: sequentially connect the first oil pipe, oil well pump, eye pipe, packer and the second oil pipe, composition flow string, enter this flow string down in the wellbore, with entering the first cable, the second cable and the 3rd cable at present, and set the position in this packer to pit shaft between corresponding oil reservoir and natural gas reservoir; The free end of the first cable, the second cable and the 3rd cable is corresponding to the first cable aperture, the second cable aperture and the 3rd cable aperture on production tree respectively, connect with flow meter terminal, pressure gauge terminal and flow control valve terminal respectively; The conventional wellhead assembly such as production tree, oil pumper is installed;
Step D: close oil nozzle on oil pumper and production tree with closing well, open the valve of flow control valve, make natural gas flow into oil reservoir through the second oil pipe pipeline section, eye pipe, oil jacket annular space;
Step e: the valve of closing flow control valve, then stewing well;
Step F: after reaching the design stewing well time, keep the valve closing of flow control valve, open described oil pumper and oil nozzle, drive a well oil recovery.
Method as above, wherein: in described step e, after the natural gas injection rate of monitoring when described flow meter reaches predetermined value, then closes the valve of flow control valve.
Method as above, wherein: in the oil recovery process of step F, when crude output does not reach design object, repeating said steps D is to step F.
Method as above, also comprises following steps between step C and step D:
Step C ': the valve of first closing described flow control valve, opens described oil pumper and oil nozzle recovers the oil, until when oil production is lower than design production capacity, then carries out described step D.
By above technical scheme, feature of the present invention and advantage are:
The oil production technology system that the present invention proposes and oil production method, be particularly suitable for the situation of growing extensive abnormal pressure natural gas reservoir in Heavy Oil Reservoir bottom.For non-abnormal pressure or the natural gas reservoir that scale is less, production capacity is lower, pressure reduction between natural gas reservoir and Heavy Oil Reservoir is large not, natural gas reservoir energy is low, the method of other heavy crude producing can be first adopted to exploit, along with the progress of exploitation, Heavy Oil Reservoir pressure can reduce gradually, when pressure reduction between natural gas reservoir and oil reservoir reaches certain value, the oil production technology system that the present invention just can be adopted to propose and oil production method.
Natural gas reservoir is communicated with oil reservoir by pit shaft by the present invention, make full use of the pressure reduction between natural gas reservoir and oil reservoir, draw natural gas and automatically flow into oil reservoir, reduce Crude viscosity, realize natural gas huff and puff oil recovery, and do not need special completion and well cementation mode, wellhead assembly, flow string and note to adopt switching technique.So the present invention is on the basis of improving crude output and recovery ratio, there is the many advantages such as technological process is simple, oil producing operation cost is low, energy consumption is low especially, improve oilfield economic benefit.
Accompanying drawing explanation
Fig. 1 is that the present invention is gulping down the schematic diagram in gas process;
Fig. 2 is the schematic diagram of the present invention in process venting one's pent-up feelings.
Detailed description of the invention
For making object of the present invention, technological means and technique effect have more complete and clearly disclose, being below described in detail, and seeing also accompanying drawing and part numbers.
Refer to Fig. 1, first introduce oil production technology system of the present invention.
A kind of heavy crude reservoir natural gas huff and puff oil recovery process system, enter to have a set of flow string 1 under in pit shaft 5, described flow string 1 is serially connected with the first oil pipe 7, oil well pump 20, eye pipe 9, packer 17 and the second oil pipe 12 from top to bottom successively; Described pit shaft 5 all has perforated interval in the position of corresponding oil reservoir 8 and natural gas reservoir 13, and each perforated interval offers multiple borehole 19(or 14); The length of described eye pipe 9 is determined by the production capacity of eye pipe 9 strength of materials, natural gas reservoir 13 and interlayer 10 thickness; The setting position of described packer 17 is between oil reservoir 8 and natural gas reservoir 13, the annular space between flow string 1 and sleeve pipe 28 is referred to) for the oil jacket annular space 18(between oil-separating layer 8 and natural gas reservoir 13, and the position of packer 17 should be tried one's best near natural gas reservoir 13 when eye pipe 9 intensity allows, to ensure that eye pipe 9 has enough length, namely there is abundant eyelet 90, thus provide circulation passage as much as possible for natural gas.
Described 12 li, second oil pipe is provided with the flow meter 11 for monitoring gas discharge and the pressure gauge 16 for monitoring gas pressure; Second oil pipe 12 end is provided with the flow control valve 15 for controlling gas discharge.
Preferably, described flow meter 11 is connected with the flow meter terminal 26 being positioned at ground surface end by the first cable 21, and flow meter terminal 26 shows flow number; Described pressure gauge 16 is connected with the pressure gauge terminal 25 being positioned at ground surface end by the second cable 22, and pressure gauge terminal 25 shows pressure value; Described flow control valve 15 is connected with the flow control valve terminal 2 being positioned at ground surface end by the 3rd cable 6, by the valve size of flow control valve terminal 2 adjust flux control valve 15, thus controls gas discharge; Described oil production technology system is also provided with production tree 29 at well head, and described production tree is provided with the first cable aperture 31, second cable aperture 32 and the 3rd cable aperture 30, so as the first cable 21, second cable 22 and the 3rd cable 6 respectively correspondence pass; Rubber seal is passed through in gap between cable aperture and cable.
Preferably, described first cable 21 stretches out from described flow meter terminal 26, through the first cable aperture 31 on production tree 29, oil jacket annular space 18 is extended into along well head 24, enter a pipe 9 inside by the eyelet 90 of eye pipe 9 again and extend downward the second oil pipe 12, being connected with the flow meter 11 being arranged in the second oil pipe 12; Described second cable 22 stretches out from described pressure gauge terminal 25, through the second cable aperture 32 on production tree 29, oil jacket annular space 18 is extended into along well head 24, enter a pipe 9 inside by the eyelet 90 of eye pipe 9 again and extend downward the second oil pipe 12, being connected with the pressure gauge 16 being arranged in the second oil pipe 12; Described 3rd cable 6 stretches out from described flow control valve terminal 2, through the 3rd cable aperture 30 on production tree 29, oil jacket annular space 18 is extended into along well head 24, enter a pipe 9 inside by the eyelet 90 of eye pipe 9 again and extend downward the second oil pipe 12, the flow control valve 15 be connected in series with the second oil pipe 12 end is connected.
See also Fig. 1 and Fig. 2, the oil production method will introduced heavy crude reservoir natural gas and handle up below, the method comprises:
Steps A: drill an oil well 3 in oil reservoir target area, from top to down drills stratum 4, oil reservoir 8, interlayer 10 and natural gas reservoir 13, by pit shaft 5, oil reservoir 8 is communicated with natural gas reservoir 13, and carries out perforation to the wellbore section of corresponding oil reservoir 8 and natural gas reservoir 13;
Step B: the eye pipe 9 selecting suitable length according to the production capacity of eye tube material intensity, natural gas reservoir 13 and interlayer 10 thickness; Flow meter 11 for monitoring gas discharge and the pressure gauge 16 for monitoring gas pressure are set in the second oil pipe 12, at the second oil pipe 12 end, the flow control valve 15 for controlling gas discharge is set, the cable of flow meter 11, pressure gauge 16 and flow control valve 15 is each passed through the eyelet 90 on the second oil pipe 12 and eye pipe 9, and makes the degree of depth of length slightly larger than pit shaft 5 of each bar cable;
Step C: sequentially connect the first oil pipe 7, oil well pump 20, eye pipe 9, packer 17 and the second oil pipe 12, composition flow string 1, described flow string 1 is entered under in pit shaft 5, with entering the first cable 21, second cable 22 and the 3rd cable 6 at present, and the position in set packer 17 to pit shaft 5 between corresponding oil reservoir 8 and natural gas reservoir 13; The free end of the first cable 21, second cable 22 and the 3rd cable 6 is each passed through the first cable aperture 31, second cable aperture 32 on production tree 29 and the 3rd cable aperture 30, then connects with flow meter terminal 26, pressure gauge terminal 25 and flow control valve terminal 2 respectively; The conventional wellhead assemblies such as production tree 29, oil pumper are installed;
Step D: close oil nozzle 27 on oil pumper and production tree 29 with closing well, open the valve of flow control valve 15, make natural gas flow into oil reservoir 8 through the second oil pipe pipeline section 12, eye pipe 9, oil jacket annular space 18, now the flow direction of natural gas as illustrated by the arrows in fig. 1;
Step e: the valve of closing flow control valve 15, then stewing well;
Step F: after reaching the design stewing well time, keep the valve closing of flow control valve 15, open oil pumper and oil nozzle 27, drive a well oil recovery, and now the flow direction of crude oil as shown by the arrows in Figure 2.
In described step e, after the natural gas injection rate of monitoring when described flow meter 11 reaches predetermined value, then close the valve of flow control valve 15.The predetermined value of natural gas injection rate is in advance by the method such as reservoir engineering and numerical simulation demonstration.
Preferably, in the oil recovery process of step F, when crude output does not reach design object, repeating said steps D is to step F.Crude output is a dynamic process, and along with crude oil production, rarer fluid can take the lead in being exploited out, and denseer thick fluid can be stayed in oil reservoir and accumulates gradually, causes output to reduce.Once crude output is lower than design load, just can starting natural gas huff and puff oil recovery method of the present invention, by natural gas being dissolved in oil reservoir dilution viscous crude, being beneficial to the normal output of crude oil.
Preferably, between step C and step D, also following steps are comprised:
Step C ': the valve of first closing described flow control valve 15, opens oil pumper and oil nozzle 27 recovers the oil, until when oil production is lower than design production capacity, then carries out described step D.This step shows, initial stage of production do not need to carry out the stage that natural gas handles up, as usual can carry out oil producing operation, until the undesirable natural gas of opening again of oil production is handled up.
Prerequisite of the present invention or applicable elements are the pressure that the reduced pressure (refer to that natural gas is after natural gas reservoir output, arrive the surplus pressure of oil reservoir position through pit shaft) of natural gas reservoir is far longer than oil reservoir, and natural gas reservoir reserves are large, production capacity is high; Pressure reduction between natural gas reservoir and oil reservoir is larger, gas-bearing formation production capacity is higher, then gulp down gas process and more easily carry out.
If natural gas reservoir reduced pressure a little more than, to approximate or a little less than formation pressure, or natural gas reservoir reserves are less, production capacity is lower, natural gas reservoir does not have enough energy makes natural gas inject oil reservoir in a large number, now will divide following two kinds of situations: 1, for the Heavy Oil Reservoir that Crude viscosity is not too high, if oil well can reach design production capacity, then first can directly carry out above-mentioned steps C ' and exploit; 2, for the Heavy Oil Reservoir that Crude viscosity is very high, if oil well can not reach design production capacity, then first must take measures, such as pit shaft heating etc., viscous crude first be carried out falling and glutinous just can carry out above-mentioned steps C ' and exploit to a certain degree.Along with the exploitation of oil reservoir, formation pressure reduces gradually, production capacity declines, and the pressure differential between natural gas reservoir and oil reservoir will strengthen gradually, when pressure reduction between natural gas reservoir and oil reservoir reaches certain value (by reservoir engineering method and method for numerical simulation demonstration), just can carry out above-mentioned step D and carry out natural gas and gulp down gas process.
Above act is only the schematic section Example of the present invention; and be not used to limit the scope of the invention; any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present invention and principle and amendment, all should be included within this patent protection domain.
Claims (6)
1. a heavy crude reservoir natural gas huff and puff oil recovery process system, is characterized in that, enters to have flow string down in the wellbore, and described flow string is serially connected with the first oil pipe, oil well pump, eye pipe, packer, the second oil pipe from top to bottom successively; Described pit shaft all has perforated interval in the position of corresponding oil reservoir and natural gas reservoir; The setting position of described packer between oil reservoir and natural gas reservoir, with the oil jacket annular space between oil-separating layer and natural gas reservoir;
In described second oil pipe, the flow be provided with for monitoring gas discharge takes into account the pressure gauge for monitoring gas pressure; Second oil pipe end is provided with the flow control valve entering oil pipe flow for controlling natural gas;
Described flow meter is connected with the flow meter terminal being positioned at ground surface end by the first cable, flow meter terminal demonstration flow number; Described pressure gauge is connected with the pressure gauge terminal being positioned at ground surface end by the second cable, pressure gauge terminal demonstration pressure value; Described flow control valve is connected with the flow control valve terminal being positioned at ground surface end by the 3rd cable, by flow control valve terminal adjust flux control valve valve size, to control gas discharge; Described oil production technology system is also provided with production tree at well head, described production tree is provided with the first cable aperture, the second cable aperture and the 3rd cable aperture, so as the first cable, the second cable and the 3rd cable respectively correspondence pass; Rubber seal is passed through in gap between cable aperture and cable.
2. heavy crude reservoir natural gas huff and puff oil recovery process system according to claim 1, it is characterized in that, described first cable stretches out from described flow meter terminal, through the first cable aperture on production tree, oil jacket annular space is extended into along well head, enter a pipe inside by the eyelet of eye pipe again and extend downward the second oil pipe, being connected with the flow meter being arranged in the second oil pipe; Described second cable stretches out from described pressure gauge terminal, through the second cable aperture on production tree, extends into oil jacket annular space along well head, then enters a pipe inside by the eyelet of eye pipe and extend downward the second oil pipe, is connected with the pressure gauge being arranged in the second oil pipe; Described 3rd cable stretches out from described flow control valve terminal, through the 3rd cable aperture on production tree, extend into oil jacket annular space along well head, then enter a pipe inside by the eyelet of eye pipe and extend downward the second oil pipe, the flow control valve be connected in series with the second oil pipe end is connected.
3. a heavy crude reservoir natural gas huff and puff oil recovery method, comprising:
Steps A: drill an oil well in oil reservoir target area, from top to down drills stratum, oil reservoir, interlayer and natural gas reservoir, by pit shaft, oil reservoir is communicated with gas-bearing formation, and carries out perforation to the wellbore section of corresponding oil reservoir and natural gas reservoir;
Step B: the eye pipe selecting suitable length according to the production capacity of eye tube material intensity, natural gas reservoir and compartment thickness; In second oil pipe, the flow arranged for monitoring gas discharge takes into account the pressure gauge for monitoring gas pressure, at the second oil pipe end, the flow control valve for controlling gas discharge is set, the cable of flow meter, pressure gauge and flow control valve is each passed through the eyelet on the second oil pipe and eye pipe, and makes the degree of depth of length in reserve slightly larger than pit shaft of each bar cable;
Step C: sequentially connect the first oil pipe, oil well pump, eye pipe, packer and the second oil pipe, composition flow string, enter this flow string down in the wellbore, with entering the first cable, the second cable and the 3rd cable at present, and set the position in this packer to pit shaft between corresponding oil reservoir and natural gas reservoir; By the free end of the first cable, the second cable and the 3rd cable through the first cable aperture, the second cable aperture and the 3rd cable aperture on production tree, connect with flow meter terminal, pressure gauge terminal and flow control valve terminal respectively; Production tree, oil pumper are installed;
Step D: close oil nozzle on oil pumper and production tree with closing well, open the valve of flow control valve, make natural gas flow into oil reservoir through the second oil pipe pipeline section, eye pipe, oil jacket annular space;
Step e: the valve of closing flow control valve, then stewing well;
Step F: after reaching the design stewing well time, keep the valve closing of flow control valve, open described oil pumper and oil nozzle, drive a well oil recovery.
4. method according to claim 3, wherein:
In described step e, after the natural gas injection rate of monitoring when described flow meter reaches predetermined value, then close the valve of flow control valve.
5. the method according to claim 3 or 4, wherein:
In the oil recovery process of step F, when crude output does not reach design object, repeating said steps D is to step F.
6. the method according to claim 3 or 4, also comprises following steps between step C and step D:
Step C ': the valve of first closing described flow control valve, opens described oil pumper and oil nozzle recovers the oil, until when oil production is lower than design production capacity, then carries out described step D.
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| CN105332678B (en) * | 2014-07-29 | 2019-04-02 | 中国石油化工股份有限公司 | A kind of method of huff and puff |
| CN111350478B (en) * | 2018-12-21 | 2022-06-03 | 中国石油天然气股份有限公司 | Oil production method and device |
| CN116971748B (en) * | 2023-09-22 | 2023-12-08 | 山东创新石油技术有限公司 | Intelligent explosion-proof drainage gas production machine pumping water pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2363838C1 (en) * | 2008-02-13 | 2009-08-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Procedure for development of bitumen deposits |
| CN202215220U (en) * | 2011-09-23 | 2012-05-09 | 中国石油天然气股份有限公司 | Concentric type lamination steam driving underground process tubular column |
| CN102650205A (en) * | 2012-04-27 | 2012-08-29 | 中国石油天然气股份有限公司 | Method for producing oil by changing bottom water reservoir oil well into water dumping well and oil production well system |
| CN102767355A (en) * | 2012-08-03 | 2012-11-07 | 王维纲 | Thick oil steam-huff-and-puff injection-production integrated oil production device |
| RU2470144C1 (en) * | 2011-05-31 | 2012-12-20 | Иван Викторович Грехов | Plant for simultaneous-separate extraction of hydrocarbons |
| CN102852496A (en) * | 2012-04-20 | 2013-01-02 | 中国石油天然气股份有限公司 | Middle-deep layer thickened oil deposit mining method |
-
2013
- 2013-08-20 CN CN201310364223.1A patent/CN103470233B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2363838C1 (en) * | 2008-02-13 | 2009-08-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Procedure for development of bitumen deposits |
| RU2470144C1 (en) * | 2011-05-31 | 2012-12-20 | Иван Викторович Грехов | Plant for simultaneous-separate extraction of hydrocarbons |
| CN202215220U (en) * | 2011-09-23 | 2012-05-09 | 中国石油天然气股份有限公司 | Concentric type lamination steam driving underground process tubular column |
| CN102852496A (en) * | 2012-04-20 | 2013-01-02 | 中国石油天然气股份有限公司 | Middle-deep layer thickened oil deposit mining method |
| CN102650205A (en) * | 2012-04-27 | 2012-08-29 | 中国石油天然气股份有限公司 | Method for producing oil by changing bottom water reservoir oil well into water dumping well and oil production well system |
| CN102767355A (en) * | 2012-08-03 | 2012-11-07 | 王维纲 | Thick oil steam-huff-and-puff injection-production integrated oil production device |
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